WO1998043742A1 - Boitier de centrifugeuse horizontale a vis a bol plein - Google Patents

Boitier de centrifugeuse horizontale a vis a bol plein Download PDF

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Publication number
WO1998043742A1
WO1998043742A1 PCT/EP1998/000733 EP9800733W WO9843742A1 WO 1998043742 A1 WO1998043742 A1 WO 1998043742A1 EP 9800733 W EP9800733 W EP 9800733W WO 9843742 A1 WO9843742 A1 WO 9843742A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
inner shell
outer housing
solids
liquids
Prior art date
Application number
PCT/EP1998/000733
Other languages
German (de)
English (en)
Inventor
Wilhelm Ostkamp
Original Assignee
Westfalia Separator Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westfalia Separator Ag filed Critical Westfalia Separator Ag
Priority to EP98906944A priority Critical patent/EP0973618B1/fr
Priority to BR9807909-3A priority patent/BR9807909A/pt
Priority to JP54108798A priority patent/JP3919234B2/ja
Publication of WO1998043742A1 publication Critical patent/WO1998043742A1/fr
Priority to US09/332,686 priority patent/US6248055B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl

Definitions

  • the invention relates to a housing of a horizontal solid-bowl screw centrifuge.
  • the object of the invention is to design the housing of a horizontal full-shell screw centrifuge in two shells and to ensure simple assembly of the inner shell.
  • the housing has a lower, almost over the entire length of the housing opening for a tubular inner shell, which is provided with connections extending radially to the axis of rotation of the screw centrifuge for the discharge of solids and liquids and the front side in the outer housing is definable.
  • the two-shell construction advantageously results in a use-related effort in each case through a sensible division of tasks for the outer housing and the inner shell.
  • the outer housing can advantageously be made in one piece from cast iron, as a result of which a high level of structural strength for good machine dynamics is achieved in a simple manner.
  • the tubular inner shell can be made relatively easily from product related. Material.
  • the outer surface of the inner shell is not a surface in contact with the product or a visible surface, which means that the construction is simple and the quality of the outer weld seams is low.
  • Another not inconsiderable advantage of this two-shell design is a significant reduction in noise emissions.
  • the tubular inner shell is inserted through the lower assembly opening into the outer housing in such a way that the longitudinal axis of the inner shell runs parallel to the longitudinal axis of the outer housing during this assembly movement.
  • the tubular inner shell is moved in the axial direction to an end face of the outer housing, on which the tubular inner shell, e.g. is attached by screws.
  • An inner ring inserted into the inside of the tubular inner shell in the inner shell is screwed to the associated end face of the outer housing after the other end face has been fixed on the outer housing, so that the end face of the inner shell is supported on this inner ring and the inner shell under different temperature loads compensates for this movement Can make inner ring.
  • the tubular inner shell into which the rotor and the gear unit of the screw centrifuge are inserted from one end of the outer housing and is mounted in the front bearing caps, has a sound-absorbing effect during operation of the screw centrifuge and also forms a structural unit with the connections for the discharge of solids and liquids.
  • Figure 1 is a horizontal solid bowl screw centrifuge with two-bowl, in
  • the horizontal solid bowl screw centrifuge according to FIGS. 1 and 2 is equipped with a self-supporting outer housing 1, which is made in one piece from cast iron.
  • This outer housing has a lower mounting opening 2, which extends almost over the entire length of the outer housing 1 and is slightly larger in size than a tubular inner shell 3, which has connections 4 and 5 for the discharge of solids and liquids Is provided.
  • the assembly of this tubular inner shell and the connections 4 and 5 for the discharge of solids and liquids is inserted through the lower mounting opening 2 in the direction of arrow X into the outer housing 1 until the longitudinal axes of the outer housing and the tubular inner shell match or almost match.
  • There is then an assembly movement in the direction of arrow Y until the inner shell 6 rests with its front ring 6 on the front part 7 of the outer housing 1.
  • the inner shell 3 is then fixed on the outer housing by means of screws 8.
  • an inner ring 9 is provided, which is pushed through the mounting opening 2 into the outer housing 1 through an end opening in the interior of the inner shell 3 before the tubular inner shell is inserted, so that it moves in the direction of the arrow during the mounting movement of the inner shell X doesn't bother.
  • the inner ring 9 is brought into the stop position shown in FIG. 1 on the end part 10 of the outer housing 1.
  • the inner ring 9 is then fastened by screws 11 to the end part 10 of the outer housing.
  • An end-face ring 12 of the inner shell is supported on the inner ring 9 and is slidably supported on the inner ring 9.
  • the outer housing 1 has end openings 13, 14 through which the rotor 15 and the gear 16 can be introduced into the interior of the tubular inner shell 3.
  • the pins 17, 18 are mounted in lids 19, 20, through which the end openings 13, 14 are closed.
  • the tubular inner shell 3 is preferably made of a stainless steel sheet.
  • connections 4, 5 for the discharge of solids and liquids are delimited by the tubular inner shell above the horizontal central plane 21 and have a rectangular cross section from the central plane 21 downwards in the direction of the assembly opening 2 and are separated by end walls 22, 23, 24, which have openings through which the rotor 15 extends.
  • connections 4, 5 extend downward beyond the level of the lower mounting opening 2.
  • the mounting opening 2 is closed soundproof by plates 25.

Abstract

L'invention vise à produire un boîtier en deux coques et à assurer un montage aisé de la coque intérieure (3). Le boîtier comporte une ouverture de montage (2) pour une coque intérieure (3) tubulaire, qui s'étend approximativement sur toute la longueur dudit boîtier. La coque intérieure (3) est munie de raccords (4, 5) pour la décharge de solides et de liquides, qui s'étendent dans le sens radial par rapport à l'axe de rotation (26) de la centrifugeuse à vis et cette coque intérieure (3) peut être fixée à l'avant dans le boîtier extérieur (1). Les centrifugeuses à vis de ce type s'utilisent notamment pour séparer des mélanges solides-liquides, à forte teneur en solides.
PCT/EP1998/000733 1997-04-01 1998-02-10 Boitier de centrifugeuse horizontale a vis a bol plein WO1998043742A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98906944A EP0973618B1 (fr) 1997-04-01 1998-02-10 Boitier de centrifugeuse horizontale a vis a bol plein
BR9807909-3A BR9807909A (pt) 1997-04-01 1998-02-10 Carcaça de uma centrifugadora helicoidal-invólucro completo, horizontal
JP54108798A JP3919234B2 (ja) 1997-04-01 1998-02-10 水平なソリッドジャケット・スクリュー型遠心分離機のケーシング
US09/332,686 US6248055B1 (en) 1997-04-01 1999-06-14 Housing structure for use in a horizontal solid-bowl screw decanter centrifuge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19713512.9 1997-04-01
DE19713512A DE19713512C2 (de) 1997-04-01 1997-04-01 Gehäuse einer horizontalen Vollmantel-Schneckenzentrifuge

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/332,686 Continuation US6248055B1 (en) 1997-04-01 1999-06-14 Housing structure for use in a horizontal solid-bowl screw decanter centrifuge

Publications (1)

Publication Number Publication Date
WO1998043742A1 true WO1998043742A1 (fr) 1998-10-08

Family

ID=7825174

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/000733 WO1998043742A1 (fr) 1997-04-01 1998-02-10 Boitier de centrifugeuse horizontale a vis a bol plein

Country Status (7)

Country Link
US (1) US6248055B1 (fr)
EP (1) EP0973618B1 (fr)
JP (1) JP3919234B2 (fr)
BR (1) BR9807909A (fr)
DE (1) DE19713512C2 (fr)
ES (1) ES2179457T3 (fr)
WO (1) WO1998043742A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7018326B2 (en) * 2000-08-31 2006-03-28 Varco I/P, Inc. Centrifuge with impellers and beach feed
DE10148774B4 (de) * 2001-10-02 2005-08-11 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Druckgehäuse
WO2006020566A1 (fr) * 2004-08-09 2006-02-23 Blue29, Llc Procede de formation d'une couche barriere presentant des concentrations periodiques d'elements et structures obtenues a partir d'une telle couche; systemes et procede de modification des profils de solutions dispersees a travers des topographies micro-electroniques pendant des processus de depot autocatalytique
FR2897278B1 (fr) * 2006-02-10 2009-03-06 Oilsep Services France Sarl Procede et dispositif de traitement d'un "slurry" de craqueur catalytique en vue de l'amelioration de sa valorisation
US8529425B2 (en) * 2007-12-07 2013-09-10 Tomoe Engineering Co., Ltd. Horizontal centrifugal separator in which the hermeticity of a casing is improved by using a sealing element having a simple structure
DK200801681A (en) * 2008-11-28 2010-05-29 Alfa Laval Corp Ab A decanter centrifuge with a hinged lid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949045A (en) * 1944-10-30 1960-08-16 Frank C Rushing Housings and mountings for centrifuges
US4251023A (en) * 1978-01-12 1981-02-17 Alfa-Laval Separation A/S Centrifuge with horizontally journalled rotor
DE3612919C1 (de) * 1986-04-17 1987-10-29 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit einer mit Feststoffaustragsoeffnungen versehenen Zentrifugentrommel
EP0638521A1 (fr) * 1993-08-06 1995-02-15 Klöckner-Humboldt-Deutz Aktiengesellschaft Dispositif pour la déshydratation de boues de curage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096282A (en) * 1957-12-30 1963-07-02 Sharples Corp Improvement in centrifuges
FR1388992A (fr) * 1964-01-03 1965-02-12 Procédé d'extraction de l'huile contenue dans une pâte d'olives broyées et extracteur centrifuge perfectionné servant à la mise en oeuvre de ce procédé
US3398888A (en) * 1966-08-18 1968-08-27 Ethyl Corp Centrifuge with improved discharge assembly
DE2547538A1 (de) * 1975-10-23 1977-05-05 Flottweg Werk Bruckmayer Druckdichte vollmantel-schneckenzentrifuge
US4335846A (en) * 1981-01-15 1982-06-22 Pennwalt Corporation Three-phase decanter
US4381849A (en) * 1981-06-29 1983-05-03 Bird Machine Company, Inc. Solids-liquid slurry separating centrifuge
DE4315694A1 (de) * 1993-05-11 1994-11-17 Kloeckner Humboldt Deutz Ag Maschine mit Vorrichtungen zur Verminderung von Körperschallübertragungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949045A (en) * 1944-10-30 1960-08-16 Frank C Rushing Housings and mountings for centrifuges
US4251023A (en) * 1978-01-12 1981-02-17 Alfa-Laval Separation A/S Centrifuge with horizontally journalled rotor
DE3612919C1 (de) * 1986-04-17 1987-10-29 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit einer mit Feststoffaustragsoeffnungen versehenen Zentrifugentrommel
EP0638521A1 (fr) * 1993-08-06 1995-02-15 Klöckner-Humboldt-Deutz Aktiengesellschaft Dispositif pour la déshydratation de boues de curage

Also Published As

Publication number Publication date
ES2179457T3 (es) 2003-01-16
BR9807909A (pt) 2000-02-22
EP0973618B1 (fr) 2002-07-10
JP3919234B2 (ja) 2007-05-23
DE19713512A1 (de) 1999-05-20
DE19713512C2 (de) 2000-01-13
EP0973618A1 (fr) 2000-01-26
JP2001516280A (ja) 2001-09-25
US6248055B1 (en) 2001-06-19

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